Testing device of stretcher

Abstract

The utility model provides a testing device of a stretcher, which relates to the technical field of sample piece testing and comprises a mounting frame fixedly mounted on a working table of the stretcher; one end of the adjusting part is fixed to the sliding end of the stretcher, and the adjusting part is slidably connected with the mounting frame in the moving direction of the sliding end of the stretcher; the fixing piece and the detection piece are mounted between the mounting frame and the adjusting piece; through mutual cooperation of the mounting frame and the adjusting piece, the stretcher sliding block drives the first clamping plate and the second clamping plate which are provided with the sample pieces to move relative to the pressing head, so that mechanical property testing of the sample pieces can be achieved, back-and-forth switching between a tensile test and a compression test can be achieved by adopting simple tool replacement, bolts are convenient to disassemble and replace due to installation, and the working efficiency is improved. According to the invention, equipment capable of performing a tensile test and a compression test at the same time does not need to be adopted, and the test can be realized only by adding a test tool to a common stretcher, so that the application range of sample detection is widened, and the investment of test equipment is also greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sample testing, and particularly relates to a testing device for a tensile machine. Background Technique

[0002] The testing device of the tensile machine can be used to test the mechanical properties of materials, such as strength, toughness, deformation behavior, etc., so as to provide data support for the research and improvement of materials; determine the ultimate load and fatigue life of the structure, and provide a basis for structural design and optimization; it can be used to evaluate the performance of battery materials and battery components. For example, it can simulate the working state of the battery under force, extrusion or deformation, and evaluate its safety, reliability and cycle life and other indicators.

[0003] At present, when a general tensile machine conducts a tensile test on a sample, the sample is clamped in the fixture on the tensile machine to ensure that the sample is firmly fixed at both ends of the fixture. Then, the tensile machine is started, and force is applied to stretch the sample, and the tensile force is gradually applied at a set speed until the sample breaks or reaches the set tensile limit, and thus the tensile test of the sample can be realized. The specific operation is as proposed in the special bolt tensile testing machine with the Chinese patent publication number CN220854461U. However, in the above operation, since the tensile machine can only conduct a tensile test on the sample and cannot conduct a compression test on the sample, or lacks the corresponding tooling, the tensile machine cannot realize the compression test; if a detection device with both tensile and compression functions is adopted, the cost input required for the test will be greatly increased. Therefore, those skilled in the art have provided a testing device for a tensile machine to solve the problems raised in the above background technique. Content of the Utility Model

[0004] To solve the above technical problems, the utility model utilizes the mutual cooperation of the mounting frame and the adjusting member to move back and forth between the fixing member and the detecting member, increasing the compression test of the ordinary tensile machine. The specific technical solutions are as follows:

[0005] A testing device for a tensile machine includes a mounting frame fixedly installed on the workbench surface of the tensile machine; an adjusting member, one end of which is fixed to the sliding end of the tensile machine and is slidably connected to the mounting frame along the moving direction of the sliding end of the tensile machine; and a fixing member and a detecting member installed between the mounting frame and the adjusting member.

[0006] Preferably, the mounting frame includes a middle plate and a support plate fixed to each other, and the support plate is fixed to the workbench of the tensile machine.

[0007] Preferably, an installation hole for threaded fixation with the workbench of the tensile machine is provided at one end of the support plate away from the middle plate.

[0008] Preferably, the adjusting member includes a connecting column slidably connected to the intermediate plate and adjusting plates fixedly installed at both ends of the connecting column. The fixing member and the detecting member are installed on one side of the adjusting plate facing the intermediate plate, and the adjusting plate away from the support plate is fixed to the sliding end of the stretching machine.

[0009] Preferably, the fixing member is fixedly installed on the side wall of the adjusting plate, and the detecting member is fixedly installed on the side wall of the intermediate plate.

[0010] Preferably, the fixing member is fixedly installed on the side wall of the intermediate plate, and the detecting member is fixedly installed on the side wall of the adjusting plate.

[0011] Preferably, the detecting member includes a mounting seat and a pressing head fixed to each other.

[0012] Preferably, the detecting end of the pressing head is one of a pointed head, a round head, and a flat head.

[0013] From the above technical solutions, it can be seen that the present utility model has the following beneficial effects:

[0014] Through the mutual cooperation of the mounting frame and the adjusting member, the stretching machine slider drives the clamping plates I and II with the sample to move relative to the pressing head, so as to realize the mechanical property test of the sample. If a compression test is required, only a suitable pressing head form needs to be selected, and after the sample is placed in the correct position, the compression test can be carried out; if a tensile test is required, only a fixture needs to be added and the direction of the stretching machine slider needs to be adjusted, and then the tensile test can be carried out. The disassembly and replacement in the whole process are simple, greatly improving the detection scope applicable to the sample. It can be realized only by adding a test tooling to an ordinary stretching machine, improving the detection scope applicable to the sample and greatly reducing the investment in test equipment.

[0015] By changing the positions of the fixing member and the detecting member with respect to the adjusting plate and the intermediate plate, the positions can be adjusted accordingly according to the requirements for the detection of the material, which can meet the deformation and deflection of the sample and the parameters and adjustments required during the detection of the tooling, increasing the flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the present utility model removing the mounting frame;

[0018] Figure 3 is a schematic structural diagram of the mounting frame and the detecting member of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the present utility model in the positive direction.

[0020] In the figure: 10, adapter; 20, adjusting member; 201, first adjusting plate; 202, connecting column; 203, second adjusting plate; 30, mounting bracket; 301, middle plate; 302, support plate; 303, mounting hole; 40, fixing member; 401, first clamping plate; 402, second clamping plate; 403, detection hole; 50, detecting member; 501, mounting base; 502, pressing head. Detailed implementation mode

[0021] The following combines the attached drawings and specific embodiments to elaborate on the present utility model in detail. Before elaborating on the technical solutions of each embodiment of the present utility model, the nouns and terms involved are explained. In this specification, components with the same name or the same reference numeral represent similar or identical structures, and are for illustrative purposes only.

[0022] As Figures 1 - 4 shown, a testing device for a stretching machine includes a mounting bracket 30 fixedly installed on the working surface of the stretching machine; an adjusting member 20, one end of which is fixedly connected to the sliding end of the stretching machine and is slidably connected to the mounting bracket 30 along the moving direction of the sliding end of the stretching machine; and a fixing member 40 and a detecting member 50 installed between the mounting bracket 30 and the adjusting member 20. The working surface of the stretching machine is horizontal, and the sliding end of the stretching machine is a slider and a jaw. Now, after removing the jaw, the slider is fixed to the adjusting member 20. The fixing member 40 and the detecting member 50 are respectively installed on the mutually facing sides of the adjusting member 20 and the mounting bracket 30, and the positions between the fixing member 40 and the detecting member 50 can be swapped with each other.

[0023] As Figure 1 and Figure 3 shown, the mounting bracket 30 includes a fixed middle plate 301 and a support plate 302. The support plate 302 is fixed to the working table of the stretching machine. An installation hole 303 for threaded fixation with the working table of the stretching machine is provided at one end of the support plate 302 away from the middle plate 301. The number of support plates 302 can be multiple, such as two, three, or four. Preferably, two support plates 302 and the middle plate 301 form a U-shape and are fixed to the working table of the stretching machine through the installation holes 303 at the bottom ends of the support plates 302. If three support plates 302 are used, the three support plates 302 block the middle plate 301 on three sides. If four support plates 302 are used, the middle plate 301 is blocked on all four sides.

[0024] As Figures 1 - 3As shown, the adjusting member 20 includes a connecting column 202 slidably connected to the middle plate 301 and adjusting plates fixedly installed at both ends of the connecting column 202. The fixing member 40 and the detecting member 50 are installed on one side of an adjusting plate facing the middle plate 301. The adjusting plate away from the support plate 302 is fixed to the sliding end of the stretching machine. Among them, the number of the connecting columns 202 can be set to multiple, preferably four. The shape of the adjusting plate is set to be square, and the four corners are fixedly connected to the corresponding connecting columns 202. The adjusting plates are divided into two, namely the first adjusting plate 201 and the second adjusting plate 203. The first adjusting plate 201 is fixed to the slider of the stretching machine. The stretching machine drives the adjusting member 20 to move back and forth relative to the middle plate 301. The fixing member 40 and the detecting member 50 are fixedly installed between the first adjusting plate 201 and the middle plate 301. The fixing member 40 and the detecting member 50 can also be fixedly installed between the second adjusting plate 203 and the middle plate 301.

[0025] A swivel joint 10 is fixedly installed between the slider of the stretching machine and the corresponding adjusting plate. The swivel joint 10 is fixedly connected to the first adjusting plate 201, and the other end of the swivel joint 10 is fixedly connected to the slider of the stretching machine, facilitating the connection between the two.

[0026] As Figure 1 and Figure 2 As shown, the fixing member 40 includes a first clamping plate 401 and a second clamping plate 402 with a detection hole 403 opened in the middle and pressing the sample. The first clamping plate 401 and the second clamping plate 402 are fixed by bolts. The sample is located between the first clamping plate 401 and the second clamping plate 402. The sample is provided with holes corresponding to the first clamping plate 401 or the second clamping plate 402. The bolts penetrate the sample, facilitating subsequent bulging tests on the sample and reducing the offset of the sample. After the bolts penetrate the first clamping plate 401 and the second clamping plate 402, they are bolt-fixed to the adjusting plate or the middle plate 301 to achieve installation positioning.

[0027] As Figure 3 and Figure 4 As shown, the detecting member 50 includes a mounting seat 501 and a pressing head 502 fixedly connected to each other. The detection end of the pressing head 502 is one of a pointed head, a round head, and a flat head, and different forms can be replaced according to needs. The mounting seat 501 is fixedly connected to the adjusting plate or the middle plate 301. The pressing head 502 is aligned with the detection hole 403. When the pressing head 502 moves relative to the sample, the pressing head 502 performs mechanical property tests on the sample. The sample includes but is not limited to mechanical property metals.

[0028] Embodiment 1:

[0029] The fixing member 40 is fixedly installed on the side wall of the adjusting plate, and the detecting member 50 is fixedly installed on the side wall of the middle plate 301. Among them, the installation positions are divided into the following two cases:

[0030] ① If the fixing member 40 is fixedly installed on the first adjusting plate 201 and the detecting member 50 is fixedly installed on the top end surface of the middle plate 301. Specifically, after the first clamping plate 401 and the second clamping plate 402 are fixed by bolts, the protruding end of the bolt is tightened and fixed to the first adjusting plate 201; the mounting seat 501 is fixedly installed on the top end surface of the middle plate 301 by bolts, and the detecting end of the pressing head 502 is arranged upward. When the slider of the tensile machine drives the adapter 10 to move downward, the sample moves downward along with the first adjusting plate 201, and the sample and the pressing head 502 perform a compression detection test. Otherwise, after replacing the tooling, a tensile test is carried out.

[0031] ② If the fixing member 40 is fixedly installed on the second adjusting plate 203 and the detecting member 50 is fixedly installed on the bottom end surface of the middle plate 301. Specifically, after the first clamping plate 401 and the second clamping plate 402 are fixed by bolts, the protruding end of the bolt is tightened and fixed to the second adjusting plate 203; the mounting seat 501 is fixedly installed on the bottom end surface of the middle plate 301 by bolts, and the detecting end of the pressing head 502 is arranged downward. When the slider of the tensile machine drives the adapter 10 to move upward, the sample moves upward along with the second adjusting plate 203. Preferably, a through hole for the pressing head 502 to pass through is provided in the middle of the second adjusting plate 203, and the sample and the pressing head 502 perform a compression detection test. Otherwise, after replacing the tooling, a tensile test is carried out.

[0032] The detecting member 50 is installed on the middle plate 301, which reduces the deformation and deflection during the measurement of the pressing head 502, and at the same time, the position and parameters of the pressing head 502 can be maintained and adjusted more conveniently.

[0033] Embodiment 2:

[0034] The fixing member 40 is fixedly installed on the side wall of the middle plate 301, and the detecting member 50 is fixedly installed on the side wall of the adjusting plate. Among them, the installation positions are divided into the following two cases:

[0035] ① If the fixing member 40 is fixedly installed on the middle plate 301 and the detecting member 50 is fixedly installed on the bottom end surface of the first adjusting plate 201. Specifically, after the first clamping plate 401 and the second clamping plate 402 are fixed by bolts, the protruding end of the bolt is tightened and fixed to the top end surface of the middle plate 301; the mounting seat 501 is fixedly installed on the bottom end surface of the first adjusting plate 201 by bolts, and the detecting end of the pressing head 502 is arranged downward. When the slider of the tensile machine drives the adapter 10 to move downward, the pressing head 502 moves downward along with the middle plate 301. Preferably, a through hole for the pressing head 502 to pass through is provided in the middle of the middle plate 301, and the pressing head 502 and the sample perform a compression detection test. Otherwise, after replacing the tooling, a tensile test is carried out.

[0036] ② If the fixing member 40 is fixedly installed on the intermediate plate 301 and the detecting member 50 is fixedly installed on the top surface of the second adjusting plate 203. Specifically, after the first clamping plate 401 and the second clamping plate 402 are fixed by bolts, the protruding end of the bolt is tightened and fixed to the bottom surface of the intermediate plate 301. The mounting base 501 is fixedly installed on the top surface of the second adjusting plate 203 by bolts, and the detecting end of the pressing head 502 is arranged upward. When the slider of the tensile machine drives the adapter 10 to move upward, the pressing head 502 moves upward along with the second adjusting plate 203, and the pressing head 502 performs a compression detection test on the sample. Conversely, after replacing the tooling, a tensile test is carried out.

[0037] Fixing the fixing member 40 on the intermediate plate 301 can reduce the deformation and deflection of the sample, and the operator can directly operate on the intermediate plate 301, which is more convenient to operate the sample.

[0038] In the above solution, since the adapter 10 and the first adjusting plate 201 are fixedly installed by bolts to avoid affecting the installation positions of the fixing member 40 or the detecting member 50, it is preferable to adopt the second solution of the first embodiment and the second solution of the second embodiment. Through the above solution, the back-and-forth switching between the tensile test and the compression test can be realized by simply replacing the tooling, and the installation of the bolts is convenient for disassembly and replacement. There is no need to use a device that can perform both tensile and compression tests at the same time. It can be realized only through the test tooling, which improves the applicable range of sample detection and also greatly reduces the investment in test equipment.

[0039] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A testing device for a stretching machine, characterized in that, Comprising: An installation frame (30), which includes a fixed middle plate (301) and a support plate (302), and the support plate (302) is fixed to the workbench of the stretching machine; An adjusting member (20), which includes a connecting column (202) slidably connected to the middle plate (301) and adjusting plates fixedly installed at both ends of the connecting column (202); and a fixing member (40) and a detecting member (50) installed between the installation frame (30) and the adjusting member (20), the fixing member (40) and the detecting member (50) are installed on one side of the adjusting plate and the middle plate (301) facing each other, and the other adjusting plate is fixed to the sliding end of the stretching machine.

2. The testing device for a stretching machine according to claim 1, wherein, One end of the support plate (302) away from the middle plate (301) is provided with a mounting hole (303) threadedly fixed to the workbench of the stretching machine.

3. The testing device for a stretching machine according to claim 2, characterized in that, The fixing member (40) is fixedly installed on the side wall of the adjusting plate, and the detecting member (50) is fixedly installed on the side wall of the middle plate (301).

4. The testing device for a stretching machine according to claim 2, wherein The fixing member (40) is fixedly installed on the side wall of the middle plate (301), and the detecting member (50) is fixedly installed on the side wall of the adjusting plate.

5. The testing device for a stretching machine according to claim 4, characterized in that, A swivel joint (10) is fixedly installed between the sliding end of the stretching machine and the corresponding adjusting plate.

6. The testing device for a stretching machine according to claim 1 or 4 or 5, characterized in that, The fixing member (40) includes a clamping plate one (401) and a clamping plate two (402) with a detection hole (403) formed in the middle and pressing the sample.

7. The testing device for a stretching machine according to claim 1 or 3 or 4, characterized in that, The detecting member (50) includes a mounting seat (501) and a pressing head (502) fixedly connected to each other.

8. The testing device for a stretching machine according to claim 7, characterized in that, The detection end of the pressing head (502) is one of a pointed head, a round head and a flat head.

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